Fits STIHL 017, 018, 021, 023, 025, MS170, MS180, MS210, MS230, MS250

CLUTCH DRUM WITH SPUR SPROCKET

QUALITY AFTERMARKET REPLACEMENT

​O.E.M.# 1123 640 2074, 9512 933 2260

L42374-20-25-525-21-25-525 - 4I

7 tooth, 0.325" pitch O.D. 2 11/16"

 Ships Usually In 24 Hrs & To You 1 to 7 Days Canada & U.S.A.

NOTE: Overseas Orders Will Be Sent  By Way Of Ocean 4 to 6 Weeks 

Contact Us Before Purchase If You Would Like Air Service 10 Days.

Any saws shown are for display purpose only and are not included.